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comparison CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/kj/std/iostream.h @ 69:33d812a61356

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planemo upload commit 2e9511a184a1ca667c7be0c6321a36dc4e3d116d
author jpayne
date Tue, 18 Mar 2025 17:55:14 -0400
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67:0e9998148a16 69:33d812a61356
1 // Copyright (c) 2014 Sandstorm Development Group, Inc. and contributors
2 // Licensed under the MIT License:
3 //
4 // Permission is hereby granted, free of charge, to any person obtaining a copy
5 // of this software and associated documentation files (the "Software"), to deal
6 // in the Software without restriction, including without limitation the rights
7 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 // copies of the Software, and to permit persons to whom the Software is
9 // furnished to do so, subject to the following conditions:
10 //
11 // The above copyright notice and this permission notice shall be included in
12 // all copies or substantial portions of the Software.
13 //
14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20 // THE SOFTWARE.
21
22 /*
23 * Compatibility layer for stdlib iostream
24 */
25
26 #pragma once
27
28 #include "../io.h"
29 #include <iostream>
30
31 KJ_BEGIN_HEADER
32
33 namespace kj {
34 namespace std {
35
36 class StdOutputStream: public kj::OutputStream {
37
38 public:
39 explicit StdOutputStream(::std::ostream& stream) : stream_(stream) {}
40 ~StdOutputStream() noexcept(false) {}
41
42 virtual void write(const void* src, size_t size) override {
43 // Always writes the full size.
44
45 stream_.write((char*)src, size);
46 }
47
48 virtual void write(ArrayPtr<const ArrayPtr<const byte>> pieces) override {
49 // Equivalent to write()ing each byte array in sequence, which is what the
50 // default implementation does. Override if you can do something better,
51 // e.g. use writev() to do the write in a single syscall.
52
53 for (auto piece : pieces) {
54 write(piece.begin(), piece.size());
55 }
56 }
57
58 private:
59 ::std::ostream& stream_;
60
61 };
62
63 class StdInputStream: public kj::InputStream {
64
65 public:
66 explicit StdInputStream(::std::istream& stream) : stream_(stream) {}
67 ~StdInputStream() noexcept(false) {}
68
69 virtual size_t tryRead(
70 void* buffer, size_t minBytes, size_t maxBytes) override {
71 // Like read(), but may return fewer than minBytes on EOF.
72
73 stream_.read((char*)buffer, maxBytes);
74 return stream_.gcount();
75 }
76
77 private:
78 ::std::istream& stream_;
79
80 };
81
82 } // namespace std
83 } // namespace kj
84
85 KJ_END_HEADER